Provide administration and training support to all Marines aboard NAS Oceana. They also provide ceremonial support for base and local events in the form of color guards and special detail advisors. While the MATSG's mission is administrative in nature, the command monitors the flow of students through the Naval Air Training Command, provides Marine Corps discipline and Marine Corps peculiar training
On July 2, 1950 the Joint Chiefs of Staff voted to commit the 1st Provisional Marine Brigade to combat in Korea. At the outbreak of the war, MAG-33 was part of the 1st Marine Aircraft Wing and located at Marine Corps Air Station El Toro, California. The group was well below normal strength due to force cuts which came after World War II. Because it was a skeleton of itself, the majority of 1st MAW had to be stripped bare to reconstitute the MAG. Air group personnel and equipment boarded the transport USS General A. E. Anderson and the attack cargo ship USS Achernar at Terminal Island; aircraft and aircrews were embarked on USS Badoeng Strait. On 14 July, exactly twelve days after the receipt of the warning order to deploy, MAG-33 set sail for Korea. MAG-33 had offloaded in Kobe, Japan and were composed of the F4U Corsair squadrons of VMF-323 and VMF-214, the Flying Nightmares of VMF-513 flying the night-fighting versions of the Corsair and the F7F Tigercat and VMO-6 with its eight OY-2 observation aircraft and four HO3S1 helicopters. VMF-323 stationed itself on board the USS Badoeng Strait, VMF-214 would fly off the USS Sicily, VMF-513 would operate from Itazuke under Fifth Air Force control and VMO-6 would be based in Pusan. The first offensive action of the group came on August 3 when VMF-214 launched an eight plane strike package against the North Korean 6th Division in the vicinity of Jinju. MAG-33 would also deploy with the first helicopter ever to be employed by the United States in combat.
2000 to present
Commencing in January 1982, Marine Corps officer and enlisted personnel were assigned to Light Attack Wing One. These Marines performed duties as members of the F/A-18 Hornet Fleet Introduction Team and were administratively joined on the rolls of Marine Barracks, Cecil Field. In 1984, approximately 195 Marines of all grades were assigned permanently to units at NAS Cecil Field. In subsequent years, this number increased due to the number of Marines temporarily undergoing instruction with VFA-106. During the Base Realignment and Closure board of 1993, it was determined that VFA-106, Naval Aviation Maintenance Group Detachment, and MATSG would be reassigned to Naval Air Station Oceana upon the closure of NAS Cecil Field. On May 4, 2000, the Commanding General of Marine Corps Combat Development Command released a message redesignating all MATSGs to incorporate appropriate honors and history of Marine Aircraft Groups. Hence, MATSG, NAS Cecil Field, was redesignated as MATSG-33 upon the reassignment to NAS Oceana, taking on the history of MAG-33. On July 1, 2006, the Commandant of the Marine Corps released a message realigning all MATSGs to fall under the Commanding General, Training Command, part of Training and Education Command.